Adjustable grille



May 14, 1935. J. P. BURCHAM ADJUSTABLE GRILLE Filed April 13, 1934 ATTORNEYS.

Patented May 14,1935 1 v UNITED STATES. PATENT OFFICE Q 2,061,181 I ADJUSTABLE GRILLE James P..Burcham, Indianapolis, Ind. Application April 1c, 1934, Serial No. 720,396

' l towni (01. 20-41) This invention relates to a grille for serving as intermediate the ends of the sections [2 for ana guard or protection in connectionwith windows choring the grilles and bars centrally of the and similar openings, screen doors and the like, frame. Atintervals throughout the length of the particularly wherein' said grille is adjustable bars l5 there are flattened portions it where the 5 Within limits as to the length thereof. bars extend between the members of the grille.

The principal object of theinvention is to fThe grille comprises a plurality of angularly economically produce a grille of the above chardisposed members H which crisscross each other acter which is adjustable while having qualities as illustrated and are pivotally connected by present in afixed grille, such as vertical bars rivets or screws l8 intermediate their ends, such 0 mounted in conjunction with the grille. structure. pivotal connections extending in a horizontal line 10 One feature of the. invention resides in the intermediate the top and bottom of the frame. mounting of the rigid, vertical bars slidably con- The free ends of said members are provided with nected with the adjustable frame and the adlongitudinal slots IQ for receiving a removable justable grille; locking plate 20 which is provided with recesses Another feature of the invention resides in the intermediate its head portions 2| and its body 15 removable anchoring devices for securing the portion. The body portion is provided with an rigid bars to the adjustable grille but permitting opening through which the bars l5 may extend a sliding relation therebetween. as illustrated in Fig. 2.

A further feature of the invention resides in In assembling the grille members and bars as the arrangement of the adjustable frame wherein shown in Fig. 3, the locking plate 20 has its heads 20 there is provided a central section into which the 2| inserted through the slots l9 when the memend sections are adapted to telescope. bars I! 'lie parallel with each other. After the Still a further feature of the invention resides heads 2| have passed through the slots, the plate in the slidable anchorage devices secured to the may be turned to the position illustrated in Fig.

5 p v t d g i le ba s Sl b y pported within the 4 and the bars l5 inserted through the opening frame, all as will be hereinafter more specifically i th body of th plate so as t be Sljdably set forth and described. nected with the grille members.

Other objects and features of the invention will A will be noted in Fig. 1, the flattened portions be under o d from th ac omp nyin drawing l6 extend between the intersecting members of and the following descripti n n m the grille so as to permit relative sliding move- 30 Fig. 1 is a plan view of the grille. Fig. 2 is an ment therebetween. enlarged section taken on the line 2-2 of Fig. 1. While th upper and lower ends of the grille Fi 3 is an enlarged section take on h line members are pivotally connected through the -3 of ig. 4 is an enlarged elevati n medium of the plate 20, the ends projecting laterof that portion of the invention illustrated in any t t end Sections 0 of t frame are 35 pivotally connected to a cup 23 as shown in Fig. 3,v n he d a there is illustrated a longisaid cup being provided with flanges which slide tudinal adjustable grille Co p s end frame within the frame sections In while retaining the Sections pper and lower end sections l l and pivoted ends of the grille members therein. This pp r a d. l w r c n l Sections The arrangement provides both a pivotal connection fi s 0 a d H a e rigidly S u d ogether by for the grille members and a bearing for slidably rivets l3 at the corners of the frame and are prou ti th within the end bars. vided with longitudinal slots M on the inne In operation, the grille may be adjusted longisurface thereof. The central sections l2 are cortudina'lly within limits by pushing the end lespondingly d, t a d to S d bl tions ill of the frame toward and away from each ceive the sections H therein. Thus, the ends other. When they are pushed toward each other,

l of the frame may be mov d r la i e enthe bar l5a remains at a fixed position while all al Sect ons 1 el p i each d t the other bars I5 are caused to slide horizontally 0f. toward the central bar through their sliding conx n in n rm i e the upper and lower nection with the grille members. The grille m'm- 50 sections l I and I2 there are a plurality of vertical bers vary their angular relation to each other, rigid bars l5 having their ends extending through the upper and lower free ends sliding longitudithe slots I4 of the upper and lower sections so nally of the bars l5 through the medium of the as to be slidable longitudinally thereof. The plate 20 which also permits them to alter their central bar indicated at 15a is rigidly secured angular relation. This action also causes the upper and lower end mountings or cups 213 to slide within the end sections lil away from each other. The reverse action takes place upon 1 ngthening the grille by pushing the end members i of the frame away from each other, thereby rawing the plates 20 toward the center of the ars l5 and causing a corresponding movement of the bearing cups 23 in the inner section of the frame.

The invention claimed is:

1. A grille comprising a rectangular frame having a plurality of frame sections telescoping one within the other, a plurality of rigid bars mounted in spaced parallel relation to each other with their free ends slidably mounted with respect to said frame sections, a plurality of interwoven grille members angularly disposed in relation to each other and said bars, each of said bars being slidably embraced between said grille members at their points of intersection, and a locking plate mounted on said grille brace and retain said bars in relation thereto.

2. A grille comprising a rectangular frame hav:

ing upper and lower frame sections telescoping one within the other, each of said sections having a slot formed longitudinally and opening inwardly thereof, a plurality of rigid bars mounted members to slidably em-.

in spaced parallel relation to each other having their free ends extending into said slots, a plurality of angularly disposed interwoven grille members slidably embracing said bars at their points of intersection, and a plate pivotally connected to the upper and lower free ends of said members through which said bars extend for slidably interlocking said bars and members.

3. A grille comprising a rectangular frame having a plurality of frame sections, some of which telescope one Within the other, a plurality of rigid bars mounted in spaced parallel relation to each other, a plurality of angularly disposed interwoven grille members adapted to embrace said bars at their points of intersection, the free ends of said members between which said bars are adapted to pass having longitudinal slots therein, and a plurality of plates having enlarged heads thereon adapted to extend through adjacent slots when said grille members are arranged in parallel relation while permitting said members to be moved to angular relation, thereby causing the interlocking of said plates therewith, said plates having openings through which said bars extend for interconnecting the bars and grille members in slidable relation.

JAMES P. BURCHAM. 

